[INFO] fetching crate quickbacktrack 0.7.1...
[INFO] testing quickbacktrack-0.7.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate quickbacktrack 0.7.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate quickbacktrack 0.7.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate quickbacktrack 0.7.1
[INFO] tweaked toml for crates.io crate quickbacktrack 0.7.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate quickbacktrack 0.7.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate quickbacktrack 0.7.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.9
[INFO] [stderr]   Downloaded getrandom v0.1.15
[INFO] [stderr]   Downloaded fnv v1.0.5
[INFO] [stderr]   Downloaded libc v0.2.77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aecd837acde354ff6e1752b023ebb7b69ae2a2bc6b7571ccc5138e8a5d26cce4
[INFO] running `Command { std: "docker" "start" "-a" "aecd837acde354ff6e1752b023ebb7b69ae2a2bc6b7571ccc5138e8a5d26cce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aecd837acde354ff6e1752b023ebb7b69ae2a2bc6b7571ccc5138e8a5d26cce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aecd837acde354ff6e1752b023ebb7b69ae2a2bc6b7571ccc5138e8a5d26cce4", kill_on_drop: false }`
[INFO] [stdout] aecd837acde354ff6e1752b023ebb7b69ae2a2bc6b7571ccc5138e8a5d26cce4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17cb193fd5d08d59000c555eecabfc91b722aa63a1eef45eb19664763d96e76d
[INFO] running `Command { std: "docker" "start" "-a" "17cb193fd5d08d59000c555eecabfc91b722aa63a1eef45eb19664763d96e76d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling fnv v1.0.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling quickbacktrack v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.94s
[INFO] running `Command { std: "docker" "inspect" "17cb193fd5d08d59000c555eecabfc91b722aa63a1eef45eb19664763d96e76d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17cb193fd5d08d59000c555eecabfc91b722aa63a1eef45eb19664763d96e76d", kill_on_drop: false }`
[INFO] [stdout] 17cb193fd5d08d59000c555eecabfc91b722aa63a1eef45eb19664763d96e76d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 309415e4ca14dfe953296cab8cc742ed714d80f57c6e8fea4347ac3e49966305
[INFO] running `Command { std: "docker" "start" "-a" "309415e4ca14dfe953296cab8cc742ed714d80f57c6e8fea4347ac3e49966305", kill_on_drop: false }`
[INFO] [stderr]    Compiling quickbacktrack v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "309415e4ca14dfe953296cab8cc742ed714d80f57c6e8fea4347ac3e49966305", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "309415e4ca14dfe953296cab8cc742ed714d80f57c6e8fea4347ac3e49966305", kill_on_drop: false }`
[INFO] [stdout] 309415e4ca14dfe953296cab8cc742ed714d80f57c6e8fea4347ac3e49966305
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dfd2498424fbf9f554a06d5ed0b6907c8c43371b43b9497154d69d0eb95e4f3b
[INFO] running `Command { std: "docker" "start" "-a" "dfd2498424fbf9f554a06d5ed0b6907c8c43371b43b9497154d69d0eb95e4f3b", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/quickbacktrack-4f21adfd5db2b275)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests quickbacktrack
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dfd2498424fbf9f554a06d5ed0b6907c8c43371b43b9497154d69d0eb95e4f3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfd2498424fbf9f554a06d5ed0b6907c8c43371b43b9497154d69d0eb95e4f3b", kill_on_drop: false }`
[INFO] [stdout] dfd2498424fbf9f554a06d5ed0b6907c8c43371b43b9497154d69d0eb95e4f3b